Citation: Huang, X. H.; Shi, L.; Ying, S. M.; Yan, G. Y.; Liu, L. H.; Sun, Y. Q.; Chen, Y. P. (2018). Two lanthanide metal--organic frameworks as sensitive luminescent sensors for the detection of Cr2+ and Cr2O72− in aqueous solutions. CrystEngComm, 20, pp. 189-.